Arctiidae-Derived Sensor Cells With Refrigeration Resistance
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Solution Overview
Problem
Existing odor sensors that rely on artificially prepared lipid bilayer membranes with sensor proteins are inefficient to produce and lack adequate refrigeration resistance, necessitating the development of cells with improved storage stability for use in chemical sensors.
Innovation Solution
Cells derived from the family Arctiidae, particularly Spilosoma imparilis, are engineered to express sensor proteins, including odorant receptors, with integrated coding sequences for refrigeration resistance and drug resistance, and are used in cell chips for chemical detection.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If cells are prepared in advance and retained in containers for convenience, then ease of operation is improved, but cells may dry out and lose refrigeration resistance
Solution Approach 1:
The patent employs insect cells that can be rapidly cultured and prepared as disposable sensor units. These cells are cultured in advance, loaded into sensor devices, and then used before being discarded, eliminating the need for long-term storage while maintaining operational convenience. This approach trades the reusability of expensive cells for the simplicity of disposable ones, resolving the contradiction between ease of operation and refrigeration resistance.
2Measurement precision
If lipid bilayer membranes are artificially prepared to incorporate sensor proteins, then measurement precision is improved, but production efficiency deteriorates
Solution Approach 1:
The patent extracts only the essential functional component (sensor-expressing cells) from the complex lipid bilayer membrane system. By using whole insect cells that naturally express odorant receptors, the invention eliminates the time-consuming processes of artificial lipid bilayer preparation while retaining the high measurement precision of receptor-based sensing. This extraction of the core functional element resolves the contradiction between measurement precision and production efficiency.
Solution Approach 2:
The insect cells autonomously express and maintain the sensor proteins (odorant receptors) within their cellular structures. This self-service capability eliminates the need for external preparation of lipid bilayers and protein incorporation, as the cells naturally provide the sensing function. The cells are simply cultured and deployed, dramatically improving productivity while maintaining measurement precision.
3Reliability
If cells are cultured and prepared each time for use, then refrigeration resistance is improved, but productivity deteriorates
Solution Approach 1:
The patent implements preliminary cell culture and preparation steps that create ready-to-use sensor cells in advance. These pre-prepared cells can be stored and deployed quickly when needed, combining the benefits of advance preparation (improved reliability) with efficient deployment (maintained productivity). The cells are cultured, validated, and packaged beforehand, eliminating the need for time-consuming preparation at the point of use.
Data Source
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AI summary
Provided are cells with excellent refrigeration resistance that can be used in chemical sensors. The cells are derived from an insect of the family Arctiidae, containing an exogenous polynucleotide containing a coding sequence for a sensor protein.